Therapeutical stand



Sept. 1, 1925.

H. o. LEHMAN THERAPEUTICAL 'mw Filed May 11. 1923 2 Sheets-Sheet 1 t lllflllllllll'lll'llvll mm Em Hugo 0. Lehman Guam:

H. O. LEHMAN THERAPEUTIQAL STAND Sept.' 1, 1925. 7 1,552,323

Filed May 11. 1925 2 Sheets-Sheet 2 ammvtoz [11190 Lehman Patented Sept. 1, 1925.

UNITED STATES HUGO O. LEHMAN, WASHINGTON, DISTRICT OF COLUMBIA.

TH'ERA'PEUTICAL STAND.

Application filed May 11, 1923. Serial No. 638,417.

To all whom it may concern:

Be it known that I, HUGO O. LEHMAN, a citizen of the United States, residing at \Vashington, in the District of Columbia, have invented certain new and useful Improvements in Therapeutical Stands, of which the following 'is a specification;

My saidinvention relates to a therapeutical stand and it is an object of the invention to provide such a stand with improved and convenient supporting and operating means for the various instrumentalities located on the stand.

Another object is to provide a stand which can readily be arranged for use as a dental stand, or for use of physicians, chiropractors or others having occasion to utilize various electrical or massaging devices.

Referring to the accompanying drawings,

which are made a parthereof and-on which similar reference characters indicate'similar parts a a Figure 1 is a front elevation of the device of my invention with part of the outer casing broken away,

Figure 2,- a vertical section on line 2-2 of Figure 1,

Figure 3, of Figure 1,

Figure 4, a plan with parts omitted, V

Figure 5, an enlarged viewof a spray bottle, Figure 6, a'detail of a valve shown in Figure 1, and

Figure 7, a sectional detail of a-handle in Figure 1. v p

In the drawings reference character 10 indicates the hollow body of the stand which is oblong in horizontal section and is sup ported on a-base 11. Near the bottom of the body is a door which gives access to the lower part of the body, said lower part containing shaft. 12 driven by a motor 13. The shaft drives a rotary pump in a casing 14 having a suction pipe 15 connectedaxially thereto and a pressure transmitting pipe 16 connected to theperiphery-of the casing. The latter pipe has an air strainer 17 above a vertical section on line 3-3 the pump.

A flat ledge 18 is provided near the top of the stand for supporting :various instruments and'at the rear side of the ledge there is a hollow upward extension 19 spaced from the front and from the sides of thestand. ng ne bracketiifl is locat d pon the with cautery 32 in seats 37 along the front top of extension 19 whichhas'an outlet 20 (Figure 4) and supports a dental engine 21 of well-known type, driven by a motor 22.

Another bracket 23 at light outlet 23 .(Figure 4) on top' of the extension carries a reflector24 with an electric bulb 25-centrally supported therein. v

The instruments on the stand include a pair of spray bottles 26 and 27 connected by flexible tubes 28 to pipe 16. The tubes 28 are each fast at one" end. to a branch of pipe 16 and at the other to a spray bottle. The intermediate part depends in a" long loop or b ight and at the lower end of each loop is a pulley 29. Theipulleys-are con nected by flexible bands or cords. 30 to spring reels in casings 31 and as a spray bottle is lifted the cord 30 will be unwound and the spring in the drum' wound up. Preferably the spring drums are provided with ratche-ts and pawls similar vto those used in window shades, so that the spray bottle can remain in elevated or'withdrawn position so long as desired after which a slight upward jerk will release the ratchet and permit the spring to unwind and thereby wind up the cord.- The ledge 18 has a seat for each instrument and preferably the tension of the spring is such as to draw the instruments nicely downron theirseatsand hold them there with a veryv slight tension or none at all. i V

A 'cautery 32- is located on a seat atthe front of the stand next to the-spray bottles and a cord 33 extends downward therefrom to a spring drum 34 similar to those above described. An instrument 35 for plastic work on gutta-percha and the like and a mouth mirror 36, are arran ed in a row of-the 1edge 18.v Each of these devices has a rod-like body or holder surrounded by a collar 37 insidewhich isa spring 37 arranged to be moved manually in a direction to close-a-circuit by which the appliance per se' is heated, but when the instrument is returned to its seat the collar engages the ledge and is moved contrary tothe move.- ment of the body so as to break the circuit. A hot and cold air syringe 38 is arranged in V the last seatj37 and is connected by a tube 39 to pipe 16 insin ilarmannerr'to the spray bottles 26 and 27.

-A connector 40 at thevrighthand sidepf ledg 5 ser e f r attachment of instruiments for exerting suction or vibratory action on the body as in massaging. This connector has a tube 4-1 extending down about a tension pulley 42 and thence up to the upper part of pipe 15. v

The final seat li; on ledge 18 is intended to receive a high. frequency handle M for holding the various applicators used in connection with high. frequency currents.

A three-way valve 45 is located in a. connection 46 between pipes 15 and 16. The valve may be turned to bring the indicator to the position. marked S when the pump will exert a suction effect through connector h}; the valve may be turned to position f (shown in Figure 6) when the effect of the pump will be to cause pressure in. pipe 16 and the parts connected thereto; or, finally, it may be turned to a midway position when it will cause vibration in a part on the connect'or i0; e."g., the ell-known massage implement in which a transverse diaphragi'n is caused alternately to advanceand re treat'by change of air pressure or in other ways. This effect is due to the suction or compression action of the pump on the diaphragm when the connection to the atmosphere is shut off by turning the valve to the midway position where no branch registers with any of the passages in the valve casing and is uniformly produced in actual practice in the operation of a. device made in accordance with the drawings of this-application. i At the front side of extension 19 and near its upper end there is a. Window 47 in he form of a convex lens with an electric light 48 located at the rear thereof. This light is intended to serve as a pilot light to indicate that the current is on and alsoas' a signaling means whereby a maid or assistant may transmit signals to the operator in an inconspicuous manner by opening and closing a switch in the circuit.

'lVitliin the casing is a. switchboard {9 with a plurality of switches including a ma te tch 5 p o ided with a k y to lock all the electrical parts out of action, thus making it safe to leave the stand in charge of persons unskilled in electricity. When this Switch is turned on the pilot lamp 48 is lighted. By operatingfthis switch or a. wall .switchinterposed in the oil uit the pilot lamp may be used for signaling. The remaining switches 50 control various parts and electrical nstrumentali ties on 'th'estand, or special electrical devices may be provided with fuse-plugs to be; nserted n appropriate sockets on the board. By appropr ate prov s on of electrical de i e all he a es-ana in dali known to the inedi'cal art may be had with the use of this device, such' as high frenew, era eva' S nus i l "d t m c, aide-condensation, etc, and the electric curs rent may be used in its various applications for tlierapeutical and analogous purposes. The electrical modalities will be supplied or omitted according to the use to be made of the stand in .question. By providing independent switches for each of the various devices, danger of shock to the operator or attendant is avoided, this being a serious ob jection to medical and dental stands hitherto in use. 7

Preferably also an electric circuit is so arranged by means of wires 50 and circuit 7 the stand and screwing itinto an internally threaded pipe-section 53 which has connections leading to the sewer A'pipe 5 f has a spigot 55 at one end for drinking-water and a shelf 56 is detachably secured to the stand said shelf draining into tne bowl 51 and adapted to support a tumbler 57. 5 A pipe 58 is connected to pipe 5i provided at its free end Witha rubber tube 58 carrying a saliva ejector.

At the opposite side of the stand from the bowl a support 59 is secured to the stand in a manner to provide for ready disconnection, both this support and the bowl (with connected and coacting parts) being in tended to be omitted when the stand is used by others than dentists, e. g, nose and throat specialists, these elements being useful mainly to dentists and adding to the e;: pense of the device besides taking up room, so that they will be omittedunless specifically necessary. The same pedestal may, however, be used in all cases, the opennigs left by omission of the parts named being.

covered by plates or the like in any convenient manner. The support 59 has an arm 60' pivotedthereto carrying at its outer end a table 61 with a'Bunsen burner 62 at the center of theta-b le above the end of the arm. A gaspipe 63 having a cock 6% projecting from the wall or the stand extends into the pivoted arm and is connected to the burner about which the table may PIG- 16 a spray may be ejected and cut off instantly by manipulation of the thumb-lever, the valve being closed by a spring. This does away with any need for stopping and starting the pump every time the spray is needed, and is a matterof greatconvenience, particularly where the current is turned on by the lifting of the bottle as described.

It will be evident that I may connect my spray bottles by permanent connections as 71 to a source of fluid pressure other than the pump shown in the drawings.

In some buildings compressed air is supplied to all oflices from a common source and this would render the pump of mydevice superfluous, the connection to the spray bottles or other pressure-operated devices being made to the common pressure supply. Various other changes will occur to those skilled inthe art and therefore I do not limit myself to what is shown in the drawings and described in the specification but only as indicated in the appended claims, in which the true scope of the invention is set forth.

It maybe noted also as an important practi cal feature of my device that the cuspidor is provided with a self-contained trap,"so that no special plumbing is required within the stand in. making itup for dentaluse.

Having thus fully described my .said invention, what I claim asnew and desire to secure by Letters Patent, is: J i w 1. In a therapeutical stand, a hollow upright body'oblong in cross-section havingaa ledge near its upper end, an upward extension on the ledge spaced fromthe side and front edges of the ledge, instruments on the extension, seats on the ledge for vacuum instruments and instruments using air under pressure,-and means concealed in the stand for selectively producing a vacuum in relation to instruments of one set or for com pressing air for use in instruments of the other set, substantially as set forth.

2. In a therapeutical stand, a hollow upright body oblong in cross-section having a ledge near its upper end, an upward extension on the ledge spaced from the side and front edges of the ledge, instruments on the extension, seats on the ledge for vacuum instruments and instruments using air under pressure, a pump concealed in the stand,. and connections from said pump to said instruments to compress air for certain of said instruments or to produce a vibratory effect in certain other instruments, substantially as set forth.

3, In a therapeutical stand, a hollow up-' right body oblong in cross-section having a ledge near. its upperend, an upwardextension on the ledge spaced from the side and front edges of the ledge, instruments on the extension, means on the ledge forsupporting an instrument holder, a pump in the stand and connections frointhe pump to, the holder for exerting either a vacuum effect or a vibratory effect on instruments carried bysaid holder, substantially as set forth.

4:. In a therapeutical stand, a

hollow upright body,

vacuum instruments and air pressureoperated devices on the stand, a.

pump concealed in the stand, pipes leading from the pump to the vacuum and pressure devices respectively, a connection between said pipes, and'a three-wayfvalve leading to the free air in the interior of the stand adapted to be turned to produce air pressure or a vacuum or a vibrating effect as desired vso.

in the respective instruments, substantially as set forth.

5. In a therapeutical stand, a hollow-upright body oblong in cross-section having a ledge near its upper end, an upward extension on the ledge spaced'from the side and front edges of the ledge, instruments on the extension, seats on the ledge for additional instruments, spring reels Within thestand,

connections from the reels to the instruments on the ledge permitting them to :be raised from their seats and automatically returning them, and means forholding the reels temporarily inpartly unwound position, substantially as set forth. 1 1 A v 6. In a therapeuticalrstand, a hollow up right body oblong in cross-section havingv a ledge near itsupper end, an upward extension on the ledge spaced from, the side and front edges of the ledge, instruments on the extension, seats on the ledge for additional instruments, a cuspidor detachably afli-xedto the casing at one side, a bracket for astraysupporting arm detachably secured to the opposite side, a waste-pipe leading from the cuspidor through the interior of the stand, a ledge for a tumbler secured to the casing above the cuspidor and discharging into the same, a spigot above the ledge, and a water pipe in the stand having a projecting end carrying said spigot, substantially as set forth.

7. In a therapeutical stand, a hollow upright body oblong in cross-section having a ledge near its upper end, an upward extenand replacing of a suction appliance strument into operative position and broken on restoration of the same, substantially as set forth.

8. In a therapeutical stand, a support,

' seats thereon for appliances certain of which operate by suction, means in the stand for creating a suction effect in such appliances, an electric motor for operating :the same, and a switch adapted to be operated by a re ciprocating element to make and break the circuit through the motor upon the removal on its seat, substantially as set forth.

9. In a' therapeutical stand, support, seats thereon for appliances certainof which operate by vibration, means in the stand for creating a vibration effect in such appliances, an electric motor for operating the same, and a switch adapted to be operated by a reciprocating element to make and break the circuit throu h the motor upon the removal and replacing of a vibration appliance on its seat, substantially as set forth.

10. In a therapeutical stand, a hollow upright body oblong in cross-section, a ledge near its upper end, an upward extension on the ledge spaced from the sides and front thereof, instruments onthe extension, seats on the ledge for one or more pneumatic instruments, a pump concealed in the stand, a motor for the pump also concealed in the stand, spring reels for holding the instruments on their seats, and means operated by movement of a reel for making and breaking the motor circuit, substantially as set forth.

11. In a therapeutical stand, asupport, seats thereon for appliances certain of which operate pneumatically, means on the'stand for creating pneumatic effects in such appliances, an electric motor for operating the same, and a switch adapted to be operated a reciprocating element to make and break the circuit. through the motor upon the removal and replacing of anappliance onits seat, substantially as set forth.

12. In a therapeutical stand, a hollowupright body oblong in cross-section having a ledge near its upper end, an upward exten sion on the ledge spaced from the side and front edges of the ledge, instruments on the extension, seats on'the ledge for one or more pneumatic instruments, means concealed in the stand for producing pneumatic effects in such instruments, a motor for driving said last-named means, and a switch in the motor circuit closed on movement of an instrument into operative position and automatically broken on the automatic restoration of the same to its seat, substantially as set forth. I

13. In a therapeutical stand, a hollow upright casing having seats on the ledge for one or more pneumatic instruments, a pump concealed in the casing and connected to said instruments, a motor therefor, spring, reels for holding the instruments on their seats,

and means operated by movement of a reel for making and breaking the motor circuit, substantially as set forth.

14. In a therapeutical stand, a support, seats thereon for appliances certain of which operate by vibration, pneumatic means in the stand for creating a vibration effect in such appliances, an electric motor for operating the same, and means operated by removal of a vibration appliance from the seat for closing the motor circuit, substantially as set forth.

In witness whereof I have hereunto-set my hand and seal at VVashi-ngton, District of Columbia, this 9th day of May, A. D, nineteen hundred and twenty-three.

misc 0; LEHMAN. L. s. 

